Mining-measure.



A. URONWELL.

MINING MEASURE. urmo'rnox 'rxmm Inn, 1010. I

Patented N0 v.8

ANTHONY CRONWELL, or srnnriiNo RUN, PENNSYLVANIA.

MINING-MEASURE.

Specification of Letters Patent.

Patented Nov. 8, 1910.

Application filed May 13, 1910. Serial No. 561,093.

To all whom it may concern.

Be it known that I, ANTHONY GRoNWnLL, a subject of the Kin of Sweden,residing at .Sterling Run, in t e county of Cameron and State ofPennsylvania, have invented certain new and useful Improvements inMining-Measures, of which the following is a specification.

This invention relates to measures and particularly to those adapted foruse in mines.

This invention has for its object to pro vide a measure of the abovecharacter which may be operated by a single person, thus doing away withthe unnecessary expense of another person as is now required with thoseinstruments now used.

It also has in view the provision of a measure provided with sights bywhich the operator may see to travel in a straight path, thus preventingmany accidents caused y excavating in crooked courses.

With the above and other objects in view, this invention consists of theconstruction, combination and arrangement of parts all as hereinaftermore fully described, claimed and illustrated in the accompanyingdrawings, wherein:

Figure 1 is a side elevation of the present invention; Fig. 2 is a topplan view thereof; Fig. 3 is an end elevation; Fig. 4 is a cross sectiontaken alon line 44 of Fig. 1; Figs. 5 and 6 are dials used in connectionwith the invention.

Referring more particularly to the draw ings, 1 indicates a body.comprising pivoted end and intermediate sections the end sections 2 and2 being composed of spaced plates. At. the outer extremities of the endsections are rotatably mounted supporting members 3 by which the deviceis supported, each of said members comprising a plurality of feet 4 onone edge, and on the opposite edge, the beveled portion 5, said latterportion permitting free movement between the plates of the sections.-Pivota1ly mounted on the shaft 6 and between the lates of each sectionis the sight. 7 for 'slghting in a straight line, each sight being somounted as to pass between the plates as illustrated in dotted arcs inFig. 1. Rotatably mounted adjacent one extremity of the shaft 6 is aratchet dial 8, said dial having numerals on its outer face. The saidextremity of the shaft 6 may have, if desired, the indicator 9. The dial8 is retained in any desired position by means of a sprin actuated pawl10, the spring of said pawl eing secured to an outstanding lug 11projecting from one of the plates of the end section.

In operation, the supporting members are forced lnto the ground by anytool being applied to the beveled portion of said members after thedevice has been sighted on some -stat1onary point. After sufficientexcavations have been made, the device may be turned over, using thesupporting member nearest the excavation as a pivot, thus bringing thedevice in a position as shown at 2 in the dotted lines in Fig. 1, thesights beingpassed between the plates to the opposlte side, or now topside. The device is now again sighted on its stationary point afterwhich the other supporting member may be driven into the ground. At eachmeasure or length of the device, the dial may be turned one notch, thuskeeping a record of the mber of roddings made.

The device may be folded into a compact form, due to its pivotallyconnected sections, thus making the device very handy.

Having thus described the invention, what is claimed as new is:

1. In a measuring instrument, the combination with a body comprisingpivotally connected sections, of a plurality of supporting membersrotatably mounted on said body, said members having a plurality of feetand a plurality of sights pivotally mounted in said body, for thepurposes herein set forth.

2. A measuring instrument comprising a "section, supporting membersconnected with opposite ends of said section to position the same on theground, said supporting members being pivotally connected to the sectionwhereby the latter may be thrown bodily over a front supporting memberto bring the rear supporting member in advance thereof and accomplish aprogressive movement of the measure.

3. A measuring instrument comprising a measurin section, supportingmembers at its opposite ends, said measuring section being movable witha rearmost supporting member to advance the measure progressively bypositioning such rear supporting member in advanceof the frontsupporting member.

4. A measuring instrument comprising pivoted sections and supportingmembers at its opposite ends, said sections being movable with arearmost supporting mem- In testimony whereof I afiix my signature herto advance the measure progressively by presence of two witnesses.-ositionin such rear su ortin members i 11 advane a of the front supporiingmem- ANTHONY CRONWELL' 5 her, and sights carried by said sectionsWitnesses:

- adapted to be used after each measurement. AUGUST NELsoN,

as hereinbefore set forth. M. M. LARRABEE.

